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Keystone

Blue Lookout Pass, ID

Steepest pitch25°
Vertical838 ft
Length3,278 ft
Average pitch15°
FacesSW
Top5,510 ft

Keystone drops 838 vertical feet over 3,278 feet of skiing, with a steepest pitch of 25° about 2,580 feet below the top. That's steeper than 79% of the 5,615 blue runs we've measured in North America, and the 20th steepest of 49 named runs at Lookout Pass. It faces southwest.

How well Keystone holds snow

Snow preservationPoor

Facing southwest at an average 15°, Keystone gets about 131% of the winter sun that flat ground at Lookout Pass does, December through March. That's sunnier than 93% of the runs we've measured, and the 7th sunniest named run at Lookout Pass. Its top sits at 5,510 feet.

Angled toward the low winter sun, it bakes: powder turns heavy soon after a storm, and in spring it softens early in the day and refreezes hard overnight. Shading from ridges and trees isn't counted yet.

Keystone profile

under 25°25–35°35–45°45°+ Hover to follow the line on the map.

Where it is on the mountain

Runs like Keystone elsewhere

Nearby at Lookout Pass

Measured by ZRankings from 1-meter USGS lidar. Steepest pitch is the steepest stretch of about 50 vertical feet along the skiable line. Run lines come from OpenStreetMap and can sit a little off the skied path.